Photo by: J. Scott Applewhite
Former Vice President Dick Cheney, who also served five terms as Wyoming's representative in the House, returns July 17, 2012, to the Capitol in Washington to meet with Senate Republican leaders at a political strategy luncheon. He is accompanied by Sen. John Barrasso of Wyoming, the Republican Policy Committee chairman. (Associated Press)

Robert Mueller’s special counsel investigation into Russian meddling in the 2016 election has cost $6.7 million during the first four and a half months of the probe. Click to see past independent counsel investigations guilty of racking up high bills.